<template>
    <div class="chooseIcons">
      <el-popover placement="bottom" width="450" trigger="click">
        <span slot="reference" style="display: inline-block;width: 200px;height: 33px;line-height: 33px;">
          <i :class="userChooseIcon"></i>
          {{ userChooseIcon }}
        </span>
        <div class="iconList">
          <i v-for="item in iconList" :key="item" :class="item" @click="setIcon(item)" style="font-size: 20px"></i>
        </div>
      </el-popover>
    </div>
  </template>
  
  <script>
    //导入自定义的icon图标库
    import {
      elementIcons
    } from "@/utils/icons";
    export default {
      name: 'MyIcon',
      data() {
        return {
          userChooseIcon: "", //用户选中的图标
          iconList: [], //图标列表
        }
      },
      methods: {
        /**
         * 获取图标列表
         */
        getIconList() {
          this.iconList = elementIcons;
        },
        //给icon绑定的点击事件
        setIcon(icon) {
          //将i的样式设为选中的样式el-icon-xxx
          this.userChooseIcon = icon;
          //将选中的图标传递给父组件
          this.$emit("selecticon", icon)
        },
      },
      created() {
        //获取图标列表
        this.getIconList();
      }
    }
  </script>
  
  <style scoped lang="scss">
    .iconList {
      width: 400px;
      height: 300px;
      overflow-y: scroll;
      overflow-x: hidden;
      display: flex;
      justify-content: space-around;
      flex-wrap: wrap;
  
      i {
        display: inline-block;
        width: 60px;
        height: 45px;
        color: #000000;
        font-size: 20px;
        border: 1px solid #e6e6e6;
        border-radius: 4px;
        cursor: pointer;
        text-align: center;
        line-height: 45px;
        margin: 5px;
  
        &:hover {
          color: orange;
          border-color: orange;
        }
      }
    }
  
    .chooseIcons {
      width: 195px;
      background-color: #FFFFFF;
      background-image: none;
      border-radius: 4px;
      border: 1px solid #DCDFE6;
      box-sizing: border-box;
      color: #606266;
      display: inline-block;
      font-size: inherit;
      height: 33px;
      line-height: 25px;
      outline: none;
      padding: 0 15px;
      transition: border-color 0.2s cubic-bezier(0.645, 0.045, 0.355, 1);
    }
  </style>
  